Elevator for mines.



W. GHANNON. ELEVATOR FOR MINES. APPLICATION FILED 1130.20, 1909.

Patented Aug. 29, 1911.

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COLUMBIA PLANOGRAPH C0-, WASHINGTON. D. C.

W. GHANNON. 1 ELEVATOR FOR MINES. PPPPPPPPPPPPPPPPPPPPPPPPPP 9.

Patented Aug. 29, 1911.

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WILLIAM GHANNON, 0F DES MOINES, IOWA.

ELEVATOR FOR MINES.

Specification of Letters Patent.

Application filed December 20, 1909.

Patented Aug. 29, 1911. Serial No. 534,178.

To all whom it may concern:

Be it known that I, VVILLIAM CHANNON, a citizen of the United States,residing at Des Moines, in the county of Polk and State of Iowa, haveinvented a certain new and useful Elevator for Mines, of which thefollowing is a specification.

The object of my invention is to provide an elevator of simple, strongand durable construction provided with a tilting platform which platformis so arranged that it may be automatically dumped when it reaches apredetermined position relative to the elevator shaft, and also soarranged that when in its normal position it will be firmly I supportedagainst tilting movements.

A further object is to provide improved means for tilting the dumpingplatform, which means are so arranged that they will not in any wayaffect the tilting platform during a downward movement of the elevatorand the shaft.

My invention consists in certain details, in the construction,arrangement and com bination of the various parts of the device wherebythe objects contemplated are at tained, as hereinafter more fully setforth, pointed out in my claims and illustrated in the accompanyingdrawings, in which Figure 1 shows a vertical, central, sectional viewthrough an elevator shaft and an elevator cage, and a tilting platformtherein embodying my invention. The dotted lines in said figure show theposition of the tilting platform when ready to discharge its load. Fig.2 shows a side elevation of same; the dotted lines in said figure showthe position of a mine car on the tilting platform, and Fig. 3 shows adetail edge View of one of pivot levers for locking the tilting platformin normal position.

Referring to the accompanying drawings, 1 have used the referencenumeral 10 to indicate that portion of the elevator shaft shown. Thiscomprises two guide rails 11.

At the point where the elevator is to be dumped, I have arranged on eachside of the shaft a chute 12 through which the contents of the tiltingplatform may be discharged.

The elevator cage comprises a body portion made up of two sheets ofmetal of the kind ordinarily used for making boiler plates and indicatedby the numeral 13. Said sheets are arranged on opposite sides of thecage. Connected to said sheets at the bottom is a frame 14 and at thetop is another frame 15. In order to strengthen and reinforce the frameof the cage I have provided two straps 16 extended under the bottom ofthe cage, then upwardly on the exterior of the plates 13 as indicated bydot-ted lines in Fig. 1, then inwardly and upwardly and the upper endsof these straps 16 are extended above the top frame 15 and are providedwith loops 17 to receive the short bars 18, and these bars are designedto have the elevator cables attached to them. Thetop of the frame isfirmly braced on the side plates 13 by means of the brace straps 19. Bythis means it is obvious that an extremely strong and durable frame forthe cage is provided. In order to provide for guiding the elevator cagerelative to the guide tracks 11, I provide the ordinary guide bars 20 onthe sides of the cage.

The tilting platform comprises a rectangular frame 21 having on each enda shaft 22, the ends of which extend beyond the platform. For supportingthe platform I have provided two shafts 23 arranged parallel with eachother and slightly spaced apart and having their ends fixed to the sidesof the cage. Fixed to the platform are two bracket devices 24; extendeddownwardly and provided with two semi-circular notches designed toreceive the shafts 23, said notches being open at their lower ends sothat the platform may tilt on one of the shafts 23 and the bracket thatis adjacent to the other shaft may rise above it, as clearly illustratedby dotted lines in Fig. 1. One of said brackets 24 is arranged on eachside of the tilting platform adjacent to the side of the cage. Forholding the platform against tilting movements, I have provided on eachside thereof a supporting bar 25 extended from the side of the tiltingplatform near its' end upwardly and inwardly to a point above thecentral portion of the tilting platform, and then downwardly andoutwardly to the other end of the tilting platform, the ends of said barbeing firmly fixed to the platform. from binding against the side of theelevator cage, I have provided a rail 26 which rail extends outwardlyfrom the side of the cage. For the purpose of locking the bars 25 inposition with the cage horizontal, I have provided two locking leverseach made of a single piece of material as shown in Fig. 3 andcomprising a body portion 27 I11 order to prevent said bar tiltingplatform, the ends of which engage.

pivoted at its central portion on a bolt 28 fixed to the side 13 and anextension on the end of the body portion to project to the outside ofthe cage plate 13 and to receive the outer end of the bolt 28. On theinner end of the body portion 27, I have formed a shoulder 29 and on theinner surface of the side plate 13 is a guide strap 30 through which thebody portion 27 is extended and which tends to limit the downwardmoyement of the inner end of the locking levers. When these lockinglevers are in the position shown by solid lines in Fig. 1, they willstand close to the supporting bars 25 and prevent all tilting movementsof the platform.

In order to move the locking levers 27 at one end on the tiltingplatform to position for releasing the supporting bars 25, I haveprovided the following devices: Pivoted to the elevator shaft frame is atriangular shaft stop device 31 having an extending arm 32 projected inthe direct-ion away from the center of the mine shaft. Below thisextension 32 is a stationary cross piece 33. One corner of the triangleprojects inwardly in the path of the locking lever 27 and as theelevator rises the end of the locking lever will strike upon theprojecting portion of the triangle which will cause the inner end of thelocking lever to be elevated to the position shown by dotted lines inFig. 1. Obviously if the locking lever 27 is in position above thetriangular device 31, then it can move downwardly past said triangulardevice without tilting the lever 27 as the triangular device may swinginwardly without engaging the part 33, but it cannot swing outwardlywithout striking said part 33.

On account of the firm support of the tilting platform on the two shafts23, it is necessary to provide a positive tilting mechanism for movingthe platform to tilted position and for accomplishing this purpose, Ihave provided the tilting levers 34 pivoted to the elevator shaft frameand extended downwardly and inwardly in the path of the ends of theshaft 22 that project beyond the sides of the platform. When the ends ofthe shaft strike these levers 34 which are firmly fixed in position aswill hereinafter appear, the adjacent end of the tilting platform willbe held stationary while the other end will be raised with the elevatorcage until the center of gravity is reached, whereupon the tiltingplatform will tilt farther to the position shown by dotted lines inFig. 1. In order to limit the tilting movement of the platform, I haveprovided thestop device 35 on the cage below the the tilting platform asclearly shown in Fig. 1.

The dotted lines at 30 shown in Fig.1 are for the purpose ofillustrating the movement of the shaft 22. The circle at the upper endthereof shows the position of the shaft 22 when it engages the lever 34and the dotted lines show the path of travel of the shaft 22 as thetilting platform moves downwardly and outwardly on the shaft 23; thenwhen the cage is moved downwardly the end of the tilting platfoTm thatprojects over the adjacent end of the chute 12 will be engaged by saidend of the chute and the platform will be returned to its normalposition and will be automatically locked and held therein by the levers27.

It is necessary to firmly hold and support the levers 34 and for thispurpose I have provided an arm 37 connected with each lever and having apin 38 extended through it into a part of the shaft frame. This arm 37may be secured in position out of the path of the shaft 22 by extendingthepin 38 through a perforated plate 39 adjacent to the arm 37 as shownto the right in Fig. 1. In order to limit the inward movement of thelever 34 I provide a stationary block 40 secured to a part of the shaftframe and projected to position where it will engage the end of thelever 34, as clearly shown to the left in Fig. 1. This device 40 is outof the path of the pivoted platform.

In order to provide for holding a mine car firmly in position on theplatform, I have provided a guide rail 41 on each side of the tiltingplatform above the ordinary tracks 42 thereon, which guide rails aresupported by arms 43 fixed to the platform. I also provide a device onthe platform for engaging a part of the car to prevent it from runningoff of the platform, which device is indicated generally by thereference numeral 44 and which is fully illustrated and described inUnited States Letters Patent, No. 890,124, issued to me June 9, 1908.

Fixed to the sides of the elevator cage are the lugs 45 arranged inpositionto engage the shaft 22 when the platform is tilted to therebyprevent "further upward move:

ment of said shaft, as clearly illustrated to the right in Fig. 1 bydotted lines. 7

In practical operation and assuming that it is desired to dump thetilting plat-form on the chute 12 shown to the left in Fig. 1., then thetriangular device 31 adjacent to said chute 12 is placed in positionprojecting toward the center of the elevator shaft projecting inwardlytoward. the center of the shaft; then as the elevator rises the lever 27will first strike upon the triangular device 31 which will elevate theinnerend thereof; then the ends of the. shaft 22 will engage the levers34 and thus, prevent'the adjacent end of the tilting platform fromrising any farther; then the tilting platform will begin to tilt andafter it has passed its and the lever 34 is also placed in positioncenter of gravity it will tilt still farther and one end will restadjacent to the chute 12 while the other end of the tilting platformwill have its shaft 22 engaged by the adjacent lugs then when theelevator moves downwardly the tilting platform will be returned to anormal position. During the up and down movement of the elevator thetilting platform is held against slight rocking movements on account ofits double support on the two shafts 23 so that the elevator will ridesmoothly upon the guide rails at its sides.

I claim as my invention:

1. In a device of the class described, the combination with an elevatorcage, of a tilting platform therein, two supports for the platformarranged side by side on opposite sides of the center of the platform,and brackets connected to the platform and having notched recesses toreceive said supports, and means for tilt-ing the platform relative tothe cage and for causing part of the bracket to rise from one of saidsupports, and the platform to be pivotally centered on the other one ofsaid supports.

2. In a device of the class described, the combination with an elevatorcage, of a tilting platform therein, two supports for the platformarranged side by side on opposite sides of the center of the platform,and brackets connected to the platform and having notched recesses toreceive said supports, so arranged that when the platform is tiltedrelative to the cage part of the bracket will rise from one of saidsupports and the platform to be pivotally centered on the other one ofsaid supports, and means arranged in the path of the elevator forengaging the tilting platform to cause it to tilt.

3. In a device of the class described, the

combination with an elevator cage, of a tilting platform therein, twosupports for the platform arranged side by side on opposite sides of thecenter of the platform, and brackets connected to the plat-form andhaving notched recesses to receive said supports, and means for tiltingthe platform relative to the cage and for causing part of the bracket torise from one of said supports, and the platform to be pivotallycentered on the other one of said supports, a guide bar extendedupwardly from the tilting platform, means connected with the cage forholding said guide bar against tilting movements, and means arranged inthe path .of the cage for releasing said lever from the guide bar.

I. In a device of the class described, an

elevator shaft, a cage movable in said shaft comprising two side platesand arranged on opposite sides of the center of the cage, a tiltingplatform, brackets connected to the platform and having two curvedrecesses therein to receive said shafts, a guide bar fixed to thetilting platform and extended upwardly, a lever pivoted to the cage tonormally engage the guide bar, a stop device in the path of said leverto be engagedthereby for moving it to position away from the supportingbar, an arm fixed to the elevator shaft and extended to position forengaging a port-ion of the tilting platform, said stop device and saidarm being so arranged that the tilting platform will be engaged by thearm after the stop device has engaged its lever, for the purposesstated.

Des Moines, Iowa, Dec. 4, 1909.

WILLIAM CHANNON. WVitnesses M. B. GOLDIZEN, M. VVALLAOE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

